1. (a.) Whirling in the manner of a top.

2. (a.) Shaped like a top, or inverted cone; narrow at the base, and broad at the apex; as, a turbinated ovary, pericarp, or root.

3. (a.) Turbinal.

4. (a.) Spiral with the whorls decreasing rapidly from a large base to a pointed apex; -- said of certain shells.